Xinxing County, formerly known as Xinzhou, is subordinate to Yunfu City, Guangdong Province. It is located in the west of the central part of Guangdong Province, in the southeast of Yunfu City, adjacent to the Pearl River Delta, between 111 ° 57 ′ 37 ″ E and 112 ° 31 ′ 32 ″ E, 22 ° 22 ′ 46 ″ N and 22 ° 50 ′ 36 ″ N, between Gaoming District, Foshan City and Heshan City, Jiangmen City in the east, Kaiping City, Jiangmen City in the southeast, Enping City, Jiangmen City in the south, Yangchun City, Yangjiang City in the southwest, and Yun'an District in the northwest Yuncheng District is connected to Gaoyao District of Zhaoqing City in the northeast. The total area of the jurisdiction is 1521.68 square kilometers. According to the data of the seventh population census, as of 0:00 on November 1, 2020, the permanent population of Xinxing County was 430831. As of October 2021, Xinxing County has jurisdiction over 12 towns. The county people's government is stationed in Xincheng.

Xinxing County is located at the intersection of Guangzhou-Foshan-Zhao Economic Circle and the Pearl River Economic Circle. In August 2020, Xinxing County was selected as the "2020 National Top 100 Counties with Comprehensive Tourism Strength". On December 1, 2020, the Chinese Academy of Social Sciences released the "Top 400 List of China's County Economic Development Report", and Xinxing ranked 341. On December 9, 2020, Xinxing County was awarded the "Civilized City of Guangdong Province" from 2018 to 2020. In July 2021, Xinxing County was listed as "Top 100 Counties with Comprehensive Tourism Strength in 2021". On April 14, 2022, Xinxing County was selected into the list of "Top 100 Counties for Rural Revitalization by CCID Consultants (2021)", ranking 62nd in the country.

In 2021, Xinxing County will achieve a GDP of 30.891 billion yuan, an increase of 9.9% year on year and an average increase of 8.2% in two years.